The temperature on May 8, 1911 was between 5.4 °C and 18.7 °C and averaged 12.8 °C. There was 13.6 hours of sunshine (89%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
January 15 » Palestinian Arabic-language Falastin newspaper founded.
January 21 » The first Monte Carlo Rally takes place.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
August 21 » The Mona Lisa is stolen by Vincenzo Peruggia, a Louvre employee.
August 24 » Manuel de Arriaga is elected and sworn-in as the first President of Portugal.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I123330.php : accessed June 8, 2024), "Teunzie Jonkman (1911-)".
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